Home / 3,212.63-4,419.55-2,621.87

Finding the Fourth Proportional to 3,212.63, 4,419.55 and 2,621.87

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Solution

The fourth proportional to 3,212.63, 4,419.55 and 2,621.87 is: 3,606.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.63 : 4,419.55 = 2,621.87 : x
  2. Step 2: Convert to fraction form
    3,212.63/4,419.55 = 2,621.87/x
  3. Step 3: Cross multiply
    3,212.63x = 4,419.55 × 2,621.87
  4. Step 4: Simplify right side
    3,212.63x = 11,587,485.56
  5. Step 5: Solve for x
    x = 11,587,485.56/3,212.63
  6. Step 6: Final answer
    x = 3,606.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.